uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KC9BIW callsign genealogy

Currently held by Kringle, Peter G

The FCC publishes a previous_call_sign on every amateur license — a self-link to the licensee's prior callsign. Following those links produces the chain below.

Previous callsigns

Older callsigns held by KC9BIW's current licensee, walking backwards.

  1. K0VXactive· E
    HAMLING, DAVID PIAgranted 2025-09-20
  2. KB9TOJcancelled· E
    HAMLING, DAVID PIAgranted 2018-10-20cancelled 2025-09-20

Successor callsigns

Callsigns held now by people who previously held KC9BIW.

  1. W0PGKactive· E
    KRINGLE, PETER GWAgranted 2024-07-24
  2. K0VXcancelled· E
    KRINGLE, PETER GWAgranted 2007-04-21cancelled 2012-02-17

All historical holders

Every license row we've seen with the callsign KC9BIW, oldest first.

  • Kringle, Peter G MT
    2002-03-25 → cancelled 2007-04-21
  • KRINGLE, PETER G WA
    2012-02-17 → cancelled 2014-09-23